Battery-electrode.



Patented mec. 9, 1913.

x, I. i!! if! 1 L m Il 'n j Mu a |llr4 rnb/e. .IIIIIIII L VIII if iltn'rrnn STATES PATENT ernten.

THN JAMES ARINGER, 0I" COHES, NEW YORK.

BATTERY-ELIlCTRODE.

Patented Uta?. tl. il serial no. 742,571.

` Ujtujgifya tpecicatton of Letters Patenti.

Application tiled January Y?, 1913.

retort carbon, the rod in either ease being' ot a different kind of carbon from the Stripe.

rl`he electrode may he permanently welded together by halting.

My improved electrode possesecs irunfi). lesI internal resistance than an electrode made ot solid carbon. lVith equal amounts ot' carbon in the electrode, my improved electrode gives greater E. M. F. than an electrode of one kind ot carbon. The gas carbon which I employ dill'ers .troni the retort carbon` in that it may Contain Some tar e it known that I, Joux Janna Anninonn, a citizen of the United States. residing` l :n the. city ot Cohoes, county ot .-`\lbany, and State ot' New Yori:` have invented a certain new and useful llattery-llleetrode. ot' which the following is a Specilication.

The object ot the pref-ent invention in to prodige@ an electrode tor electric batteries. either ot the wet or dry type, in which the E. itl. F. will be increased and the internal reeistanee reduced. This and further oh- .geets will more fully appear troni the tolor pitch. The retort; carbon may he niade lowing speczteatnin and aeconipanyn'ieY of powdered or flake carbon- The electrode.

when utilized in a wet battery, will possess adrant-ag'es over an electrode formed ot' hut one kind of carbon, due to reaction ot' the Chemicals at diti'erent depths. caused by ditterent specific Lqravitiea. i

(las earbon is the product connnmnljyI termed in gas-retorte by distillation ot hy.- drocarbons and .contains a percentage ot tar. Retort carbon is like-- wise a product formed in gas-retorts by dis-- tillation of hydrocarbons but which has been sulticiently heated'to become partially, more or less. graphitized. The une earhou has greater conductivity than retort carbon and is employed because ot' itsl conductivity; and the retort carbon is used hecauae ot' its properties to reduce resistance ot' hydration when employed in a battery haring' an electrolyte.

tu uccori'lalice with` the provisions ot the patent statutes, l hare described the princi ple of niy invention; together with the apparatus 'which now consider to represent the best embodiment thereof` hut I desire to have it understood that the apparatus shown i's merelylillustratirc. and that the invention may bc carried out in other ways.

Havingmow described my invention. what T clainl aanew and deeirc to secure by Letters Patent` s:-

l. An eleetrolrtic electrode formed ot` 'a body ot' gas carbon and a separate exposed hodv ot retort carbon bonded to the gas carbon.

2. .-Xnieleetrode torn'ied (it glas carbon and an exposed Surface ot flake retort carbon.

El. An. electrode t'ornled ot' gas' drawing, considered together or separately. y l'n the drawings, Figure l is a plan View ot an electrode embodying the invention: liig. 2 is a side elevation ot' the suine; Fitz'.` El is a plan View ot' a n'iodification; Fig. `t is a :side elevation of the same; Fig. I) is a plan View of another modification; Fin'. t3 is a side elevation of the Same; and Fig. T is a bottoni View ot' the san1e.

-ln all views, like parts are designated by the saine reference charaeters.

Fiend and 2 illustrate an elcctroi'le particularly applicable for dry batteries, e'. c.- eells using` a noneliquid electrolyte. The electrode is made `ot strips or layers of gas rarbon and retort carbon. rilhe strips a.. n., are ot fas cai-hm.. "i'he strips` Z) are of retort: carbon. rlhe strips of gas carbon and retort carbon are alternatelv arranged as shown. lhey are preferably secured toe'ehel' by halting. fr bolt (f. with a nut Z is inserted in the electrode andl forms a bindingr post.

ln the structure illustratei'l in Figs. 3 and l. the layers otx gas carbon and retort carbon' are laterally arranged. This forni ot' oleo trode is particularly applicable t'or uae with wet batteries. i. x cells with a liquid eleei trolyte.

Figs, 5, and 7, illustrate a modification ot the invention in which one of the two kinds ot rarbon is in the'torn'l of a central rod g with peripheral grooves in which are embedded strips f, ot' a different kind ot' carbon.` The strips are preferably ot the cireular crosi ettion illuetl'atech so that the surface area of-the electrode is"aug;lnented. the .strips may be of either gas-Carbon or carbon and .an exposed surface ot flake retort carbon bonded to the gas carbon.

`greater or lese` Sti' . An electrode having a smi-(ice oi'med l the rod and strips being of different kinds of alternate succeeding areas of carbon, one il 0i? carbon. l0 such arca having greater conductivity than g 'This Specification signed :md witnessed he other. this fourth day of January, 1913.

:l An electrode foi-mcd (if gus Carbon and JOHN J AMES AURNGER. retort carbon, having a center rod of carbon, Witnesses: with peripheral longitudinal grooves, and HENRY A. STRONG,

l Strips of Carbon embedded in the grooves, SMAH FLLov' 

